Laptop-hifi wireless music

Hello,
I am looking for a device to be connected to a hi-fi that would be able to:
1/ receive music from a laptop and a smartphone

possibly, also
2/ connect to internet (wi-fi) and stream internet radio (no need for TV).

I've looked around quite a bit but ended up more confused...

Would anyone have a recommendation?

I'd rather stay in a low budget (less than 100 $).

For 1/ without 2/, Bluetooth receiver (Belkin or Logitech) might be an idea, but reviews say the quality is quite bad. As I guess I'd have to put more money, I thought maybe I could find something with 2/

Thanks a zillion (10^10) times.